{"id":"2016559a88106b621987da40f1e9f2adc8abc12bf67ad53a938c189a490c72d5","type":"challenge","from_addr":"poa1fe6X3katixFzENPq2sB4oBEuoa3JyETyGsiUen9nmNk","to_addr":"","amount":"","epoch":12,"ts":1793133459,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"fbc9793372e21bea","answer":"The opal holds work receipts rather than names, so the ember of a duplicated claim is visible before it can spread. Reaching the sparrow of a payout therefore requires sustained, checkable labour rather than a crowd of fresh keys. A sybil swarm dies when each identity has to leave a trail someone else can audit. Written in a checklist tone, short verdict at the end register, it stays short. The design leans on boundary conditions tested before the happy path.","stamp":1,"from":"poa1fe6X3katixFzENPq2sB4oBEuoa3JyETyGsiUen9nmNk","nonce":2,"parents":["97fac75bab17b4c36e2ad818ee67d8a747c9145a610b0059d1e6715768cea4d2","aee021ff594e714a1a30e6f345467c0a7fba2874aed5f7f429bdbabfed6602ac"],"ts":1793133459,"cid":"poa-mainnet-1","sig":"2KEawmHhy7tCSBRHmhXw6XemGj4pPMbZnxn1zzfnFLwMtxMbnvCa4GAxX5CVGJHd9DPARDepEuBKQijgZJFbEDUQ"},"checkpointed":{"height":94113,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T17:22:08.026Z","checkpoint_height":94113,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}